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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 11 — Nov. 1, 2008
  • pp: 1820–1828

Study of line shapes in the selective ionization of Yb 176 isotope in a two-step resonance, three-step ionization scheme

M. Sankari, P. V. Kiran Kumar, and M. V. Suryanarayana  »View Author Affiliations


JOSA B, Vol. 25, Issue 11, pp. 1820-1828 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001820


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Abstract

Ytterbium enriched in Yb 176 is used for the production of the Lu 177 radioisotope, which has applications in cancer treatment. We have theoretically studied the two-step resonant, three-step photoionization of the Yb 176 isotope using the density-matrix approach. To simulate experimentally realistic conditions, the Doppler averaging, magnetic sublevel degeneracy, time–varying Rabi frequencies, ionization rate, angular divergence, and laser bandwidth have all been incorporated into the theoretical model. Calculations have been carried out to identify the optimized Rabi frequencies for evaluating the separation factor. The effect of the laser line shape on the excitation profile has also been thoroughly studied. We could obtain large separation factors of 5000 for the Yb 176 isotope, and the excitation conditions identified in this work may be utilized in the separation of the desired isotope.

© 2008 Optical Society of America

OCIS Codes
(020.3260) Atomic and molecular physics : Isotope shifts
(020.3690) Atomic and molecular physics : Line shapes and shifts
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 28, 2008
Revised Manuscript: August 8, 2008
Manuscript Accepted: August 11, 2008
Published: October 14, 2008

Virtual Issues
Vol. 4, Iss. 1 Virtual Journal for Biomedical Optics

Citation
M. Sankari, P. V. Kiran Kumar, and M. V. Suryanarayana, "Study of line shapes in the selective ionization of 176Yb isotope in a two-step resonance, three-step ionization scheme," J. Opt. Soc. Am. B 25, 1820-1828 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-11-1820

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